Spiral router bit Finishing VHM Z3 D12,7 I38 L88,9 S12,7 RH negative

Three-flute solid carbide spiral end mill 12.7x38 mm from the SC51 series – ideal edge quality and high efficiency 

Index: SC51.13.381.889.13R

High-performance spiral end mill made from solid sintered carbide (VHM) from the SC51 line, designed for precise cutting, shaping, grooving, and finishing on overhead spindle milling machines and CNC centres. The tool employs a three-flute spiral geometry in a Z3 negative arrangement, which forces effective chip removal downwards. The use of high-quality micro-grain carbide ensures high resistance to abrasive wear and significantly extends the cutting edge's lifespan. The ground shank is in tolerance class H6, mitigating radial runout, protecting the spindle bearing system, and guaranteeing an excellent standard of finish on the machined material.

Construction advantages and technical properties:

• Z3 finishing geometry (downward chip removal): Three cutting edges directing the chips downwards guarantee a clean upper edge of the raw material, preventing tear-out and effectively avoiding lifting of veneer or laminate at high feed speeds.
• Premium sintered carbide monolith (VHM): The rigid, monolithic construction prevents deformation of the cutter under high force, allowing for narrow dimensional tolerances.
• PVD coating application capability: The option to apply protective layers (e.g., TiSiN or PLATINIUM) allows for multiple extensions of the edge's lifespan, reduces friction, and protects against overheating.
• Low roughness of the shank: The shank surface with a roughness index of Ra ≤ 0.3 µm prevents the mill from rotating in the holder and eliminates the risk of wear on the spindle taper.
• Dynamic balancing in class G2.5: Certified static-dynamic balancing in the high standard G2.5 (according to ISO/EN) reduces noise and minimizes vibrations generated at high speeds (up to 18,000 RPM).

Intended use and application range:

The tool is intended for cutting, contour milling, grooving, and finishing edge operations.

It performs excellently in machining materials such as: soft and hard wood, raw and laminated MDF board, raw and laminated plywood, and raw and laminated chipboard.